· Wide spectral range.

· Excellent long term stability.

· Cosine corrected.

· Automatic transmission measurements.

· Select either power or transmission.

· Solar energy power or transmission.

· Current time setting function.

· User calibration factor setting function.

· End-mount light sensor.

· Select either W/m2 or Btu / (ft2*h) units

· Data Hold / MAX / AVG modes.

· Data Memory and Read function. (99 sets.)

· Auto Data memory (TES-1333)

· RS232 interface to PC. (TES-1333R)

Display

3-1/2 digits.Max.indication1999

Range

2000W/m² 、634Btu/(ft² * h)

Resolution

0.1W/m²、1Btu/(ft2*h)

Spectral response

400-1100nm

Accuracy

Typically within ± 10W/m²[ ±3 Btu / (ft²*h) ] or ±5% , whichever is greater in sunlight; Additional temperature induced error ±0.38W/m² / ℃ [ ±0.12 Btu / (ft²*h)/ ℃] from 25℃

Angular accuracy

Cosine corrected <5% for angles <60 °

Drift

<±2% / per year

Calibration

User recalibration available

Over-input

Display shows" "

Sampling Time

Approx. 0.4 second

Manu data memory and read

99 sets

Auto data memory

32000 sets (TES-1333R)

Battery

4pcs size AAA

Battery Life

Approx. 100 hours

Operating temp and humidity

0 ℃ to 50 ℃below 80%RH

Storage temp and Humidity

-10 ℃ to 60 ℃ below 70% RH

Weight

Approx. 165g

Dimension

111(L)*64(W)*34(H)mm

Accessories

Carrying Case, Operation Manual, 4 pcs size AAA, RS-232 cable (for TES-1333R), CD software (For TES-1333R)